Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

RUSVM Vet Prep Cell Bio Exam 2 > Part 11- Proteins and Protein Synthesis > Flashcards

Part 11- Proteins and Protein Synthesis Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Are envelope proteins energy-dependent or energy-independent?

A

Energy-dependent

Hydrolysis of GTP to GDP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What do envelope proteins fuse to?

A

Fusion with the target membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do we classify the vesicles?

A

With the coating proteins on the surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are two examples of hormone receptors?

A

Insulin and Glucagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are two examples of transport proteins?

A

GLUT 2 and NA-K ATPase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Vesicles that come from the Golgi apparatus and go to the plasma membrane are always coated with what vesicle?

A

Clathrin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the name of the envelope proteins that come from the ER to the Golgi apparatus?

A

COP 1 or COP 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where is Synaptobrevin located?

A

Localized on the surface of synaptic vesicles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the responsibility of Synaptobrevin?

A

Responsible for fusion of synaptic vesicles with the plasma membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the nuclear membrane associated with?

A

With the rER membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where is the nuclear transport signal (NLS) located?

A

located in the middle of the polypeptide chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How is the nuclear transport signal made?

A

Made from basic amino acids from a minimum of 5

e.g. -Pro-Lys-Lys-Lys-Arg-Lys-Val

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the receptor of the nuclear transport signal?

A

Importin (2 SU)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

T or F:

The nuclear transport signal goes to the ER.

A

FALSE:

it will never go to the ER (because they are internal signals)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where does the nuclear transport signal get synthesized?

A

Synthesized in the “free” ribosomes in the cytosol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Do ALL proteins determined for the nucleus be actively transported/translocated?

A

YES

e.g., Histones, Transcription factors, Polymerase, etc

17
Q

What does the Golgi apparatus consists of?

A

cis-Golgi, medial-Golgi, trans-Golgi

18
Q

Where does the modification of the N-attached sugar chains of glycoproteins take place?
A. medial-Golgi
B. cis-Golgi
C. trans-Golgi

A

medial-Golgi

19
Q

Where does protein phosphorylation take place?
A. medial-Golgi
B. cis-Golgi
C. trans-Golgi

A

cis-Golgi

20
Q

Where does the the packing of proteins in vesicles and sent to the specific “delivery address” take place?

A

trans-Golgi

21
Q

What are the characteristics of chaperons in protein folding?
A. they are ATPases
B. they have high activity at high temperatures
C. they are heat-stable proteins
D. all of the above
E. none of the above

A

D. All of the above

22
Q

What does the folding cyclus require?

A

ATP

23
Q

What does the chaperon bind to?

A

ADP

24
Q

What happens if a protein is not correctly folded?

A

It will NOT leave the ER

25
Q

Does the ADP/Chaperon-complex have a high or low affinity for unfolded proteins?

A

HIGH affinity

26
Q

Where does O-Glycosylation start?

A

in Golgi apparatus

*(it’s O and golgi has an O in it)

27
Q

What does the O-Glycosylation attach to?

A

Attachment of a sugar chain to an -OH group of Ser or Thr

*O also stands for hydroxyl group (-OH)

28
Q

What is O-Glycosylation important for?
A. Important for the hydrolysis of GTP to GDP
B. Helps with the binding of ADP/chaperon complex
C. Important for the functional conformation of a protein
D. Fusion of synaptic vesicles with the ER

A

C. Important for the functional conformation of a protein

29
Q

What are the sugar chains in protein important for?

A

Sorting and function of a protein

30
Q

Where does N-Glycosylation start in?

A

Starts in ER

31
Q

What does N-Glycosylation attach to?

A

Attachment of a sugar to an animo group of asparagine (Asn)

*N for amiNo

32
Q 
What is the N-Glycosylation recognition sequence?
A. Pro-Val-Ser/Thr
B. Asn-X-Ser/Thr
C. Lys-X-Ser/Thr
D. Pro-Lys-Ser/Thr
A

B. Asn-X-Ser/Thr

X: amino group

33
Q

What are two examples of signal proteins?

A

G-Proteins and adenylyl cyclase

RUSVM Vet Prep Cell Bio Exam 2 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions